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07 Aug 08

Baryogenesis - Wikipedia, the free encyclopedia

The photon density at equilibrium temperature T, per cubic kelvin and per cubic centimeter, is given by

n_\gamma = \frac{1}{\pi^2} {\left(\frac{k_B T}{\hbar c}\right)}^3 \int_0^\infty \frac{x^2}{\exp(x) - 1} dx \simeq 20.3 T^3 ,

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photon density

  • n_\gamma = \frac{1}{\pi^2} {\left(\frac{k_B T}{\hbar c}\right)}^3 \int_0^\infty \frac{x^2}{\exp(x) - 1} dx \simeq 20.3 T^3
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